.5(12+x)=15

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Solution for .5(12+x)=15 equation: 


Simplifying
0.5(12 + x) = 15
(12 * 0.5 + x * 0.5) = 15
(6 + 0.5x) = 15

Solving
6 + 0.5x = 15

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-6' to each side of the equation.
6 + -6 + 0.5x = 15 + -6

Combine like terms: 6 + -6 = 0
0 + 0.5x = 15 + -6
0.5x = 15 + -6

Combine like terms: 15 + -6 = 9
0.5x = 9

Divide each side by '0.5'.
x = 18

Simplifying
x = 18

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